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Zinc ore

Description: Described as "Laxey speltex". Consists of a thin layer of a very fine black mineral (probably sphalerite) with pseudomorphs of galena (some galenal crystals still present) and fine dolomite rhombs. A second sample is of subhedral sphalerite crystals with sparry quartz and euhedral dolomite rhombs. A third sample is the broken off part of the second sample: a mineral vein with a layer of anhedral sphalerite, a layer or brown to clear dolomite and a layer of anhedral quartz.

Taxonomic name: Sphalerite

Collection: Natural History Geology Collection

ID number: 1954-6395


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